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Don Pisto
Banned
Posts: 1282
Registered: 8-1-2018
Location: El Pescador
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Mood: weary like everyone else
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good stuff Harald!
there's only two things in life but I forget what they are........
John Hiatt
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PaulW
Ultra Nomad
Posts: 3075
Registered: 5-21-2013
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400P
I have a 400P mounted inside the new jeep on the C cage pillar. Last year it failed to deliver air. Sent it back and they fixed it and told me the
head gasket was installed incorrectly. No charge except for shipping one way. Since then after 4 or 5 uses it fills 4-37s from 18 to 37psi ok. But I
think it it too slow compared to my previous CO2 setup. The 400P sure gets hot and the air hose will probably be the next thing to fail due to heat at
the compressor end. I have it mounted 1.5' from my aux battery with a 10 ga wire. The battery holds at 13.5 volts during the fill process with the
jeep engine running at idle.
Quote: Originally posted by John M  | I was able to hard mount it out of the way under the hood and hard wired it. A The air hose remains attached, also helps prevent dust from getting in
the way. The supplied factory hose is plenty long enough to reach all four wheels on my Tacoma.
I don't usually drop the air pressure below 20 psi, and have 31s. Compared to others along on a recent trip, I was usually the second one aired up -
first went to an onboard converted York air conditioning compressor.
The overheating of the hose I mentioned earlier occurred when I was airing up a guy with us, after doing my 4 tires, and he needed 65 lbs. At about 45
lbs is when the hose on my Viair gave up the ghost I'm assuming due to the heat generated - though I may have stretched the hose to reach his truck
adding some stress to the hose.
John M
[Edited on 4-4-2023 by John M] |
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4x4abc
Ultra Nomad
Posts: 4289
Registered: 4-24-2009
Location: La Paz, BCS
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Mood: happy - always
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the 400P is only 30% duty cycle and delivers only 2.3 CFM
both numbers are at the lowest end of an acceptable range
Harald Pietschmann
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willardguy
Elite Nomad
Posts: 6451
Registered: 9-19-2009
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not being big off roaders we just carry the cheap mv50 but what we did was make up a pigtail with battery clips to a 120 volt plug and a receptacle at
the compressor with a heavy duty 25' extension cord that was handy to have to remote a generator etc.
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PaulW
Ultra Nomad
Posts: 3075
Registered: 5-21-2013
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Search for 'off road compressors reviews' you will find the current choices that have pretty good specs - like more than 5 CFM and with decent duty
cycle.
Times are changing. The $150 ones have matched the $600 versions.
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4x4abc
Ultra Nomad
Posts: 4289
Registered: 4-24-2009
Location: La Paz, BCS
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Mood: happy - always
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| Quote: Originally posted by PaulW | Search for 'off road compressors reviews' you will find the current choices that have pretty good specs - like more than 5 CFM and with decent duty
cycle.
Times are changing. The $150 ones have matched the $600 versions. |
sometimes the market is good for us
Harald Pietschmann
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RFClark
Super Nomad
Posts: 2462
Registered: 8-27-2015
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Mood: Delighted with 2024 and looking forward to 2025
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I’ve had one of these for years
Works great. Best to run the motor while using it as it draws a fair amount of power.
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David K
Honored Nomad
Posts: 64852
Registered: 8-30-2002
Location: San Diego County
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Mood: Have Baja Fever
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So, there you have it...
As I said before the replies all came in, there's a lot of love for the Viar, and at least one has an ARB. One more Nomad came forward who has the
MV-50 which remains under-appreciated for a pump that is, or was, in the $80-$100 range. For me, it never overheats or needs a time-out when filling
four 32" x 16" tires from 15 to 34 psi, in the summer, and the fuse or wires don't melt (like the Harbor Freight cheap/ fast one).
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geoffff
Senior Nomad
Posts: 674
Registered: 1-15-2009
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Yeah, let me also chime in for the Viair!
I have tried lots of compact air pumps, and this is the best. It's quiet, doesn't overheat, and hasn't failed me yet.
My adventure van has a huge fancy onboard pump, but for compact pump needs I have a Viair in all my other cars.
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jamesbee
Newbie
Posts: 13
Registered: 8-11-2022
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I've had my Viair 400p for 12 years. Spent the first 10 years in a Jeep TJ on 35's and 36's. I've never had to stop while filling tires and it's
never felt slow. On one trip a friends Smittybilt compressor died, I filled my tires then his 35's, no problem. Sold the Jeep couple years ago, still
have the compressor. It will fill my Dodge diesel rear tires to 80 psi no problem. I did replace the hose at some point. It also has gotten hot enough
to melt the rubber snubs that hold it to it's factory mounting plate. My .02
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thebajarunner
Ultra Nomad
Posts: 3718
Registered: 9-8-2003
Location: Arizona....."Free at last from crumbling Cali
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Mood: muy amable
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Thank you, one and all!!
Great input
Lots of options which I am sorting through
Best of all- everyone stayed on topic and it didn't veer off into "stuff"
This is absolutely what Nomad is all about, and commendations all around
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AKgringo
Elite Nomad
Posts: 6027
Registered: 9-20-2014
Location: Anchorage, AK (no mas!)
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Mood: Retireded
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| Quote: Originally posted by thebajarunner | Great input
Lots of options which I am sorting through
Best of all- everyone stayed on topic and it didn't veer off into "stuff"
This is absolutely what Nomad is all about, and commendations all around |
Well as it turns out, a "WOKE" compressor and a "MAGA" compressor put out the same amount of hot air!
If you are not living on the edge, you are taking up too much space!
"Could do better if he tried!" Report card comments from most of my grade school teachers. Sadly, still true!
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Mulege Canuck
Nomad
Posts: 387
Registered: 11-27-2016
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https://www.amazon.com/ALL-TOP-150Psi-Compressor-Portable-He...
Harold recommend this unit to me a few years ago. It has worked great . I air down my F350 carrying a large Bigfoot camper down to 30PSI on the rears
and 20PSI upfront in soft sand. I have to air up back to 75/65 PSI once back on gravel. This unit can do all my tires in 15 min.
I also own a VIAIR. It is a great unit but it took a longtime to air up because I had to wait to let it cool down.
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David K
Honored Nomad
Posts: 64852
Registered: 8-30-2002
Location: San Diego County
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Mood: Have Baja Fever
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| Quote: Originally posted by Mulege Canuck | https://www.amazon.com/ALL-TOP-150Psi-Compressor-Portable-He...
Harold recommend this unit to me a few years ago. It has worked great . I air down my F350 carrying a large Bigfoot camper down to 30PSI on the rears
and 20PSI upfront in soft sand. I have to air up back to 75/65 PSI once back on gravel. This unit can do all my tires in 15 min.
I also own a VIAIR. It is a great unit but it took a longtime to air up because I had to wait to let it cool down.
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That looks really nice... I missed seeing it mentioned by Harald. If my MV-50 ever fails, I will get one of these.
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danojeno
Newbie
Posts: 3
Registered: 8-24-2011
Location: Corona, CA
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I run a Viair 450P, hard mounted and wired in my Tacoma's bed cubby. It works great as a portable as well, with 100% duty cycle. Something to
consider, is buying a compressor without a tank. If you're using it to fill up tires, the small portable tank is almost instantly depleted, yet takes
up considerable space.
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4x4abc
Ultra Nomad
Posts: 4289
Registered: 4-24-2009
Location: La Paz, BCS
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Mood: happy - always
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| Quote: Originally posted by danojeno | | I run a Viair 450P, hard mounted and wired in my Tacoma's bed cubby. It works great as a portable as well, with 100% duty cycle. Something to
consider, is buying a compressor without a tank. If you're using it to fill up tires, the small portable tank is almost instantly depleted, yet takes
up considerable space. |
you are right - if you only fill up tires, the tank is not needed
however, if you run air tools, the tank is needed as a buffer
Harald Pietschmann
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WideAngleWandering
Nomad
Posts: 414
Registered: 3-13-2012
Location: US-Based but traveling
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I used a portable viair 400p for years to fill 33" tires on my 4x4, usually in baja trips.
Pros:
* Fills tires successfully
* Cheap
* No install required
Cons:
* Kinda slow
* The 5-in-1 inflator at the end of the hose is unusual and a bit fragile. mine eventually failed. replacements available from viair but i had to go
to a llantera to fill my tires that day.
* no tank or pressure switch. requires open chuck inflator or the proprietary 5 in 1.
* have to dig it out from under all the gear and clip it to the batteries to use
I have since switched to a hard mounted ExtremeAir Magnum and a Jaco inflator w/analog gauge
Pros:
* Fast. 100% duty cycle.
* Always available. Push a button. Connect a hose. Fill tires fast.
* Has a tank and pressure switch and can be used with a closed chuck.
* All standard components. Want a better inflator? Air nozzle to blow out dust? Small air tools? Go to town with this bad boy.
Cons:
* Costs more
* Requires installation. But in the end I'm glad I installed it once rather than having to set up viair at every use.
Both get the job done.
| Quote: | | Something to consider, is buying a compressor without a tank. If you're using it to fill up tires, the small portable tank is almost instantly
depleted, yet takes up considerable space. |
If you can find room for a decent size tank it is nice to have even for filling tires. When moving from one tire to the next the tank is building and
storing air. It speeds the process. I have a 2g tank mounted under the rear cross member, behind my rear bumper. It's definitely a nice-to-have.
[Edited on 2023-4-14 by WideAngleWandering]
Traveling the Americas via my old land cruiser
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basautter
Senior Nomad
Posts: 862
Registered: 7-1-2013
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Viair makes a family of compressors of varying size and fill rates. I have had good luck with this brand. My only complaint is the air hose that
comes with the compressor is hard coiled plastic, and does not have much reach for the volume. I replaced it with a 20 ft rubber hose.
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PaulW
Ultra Nomad
Posts: 3075
Registered: 5-21-2013
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All seem to be pretty low flow compared to the latest offerings on-line.
I found my 440P to be the slowest of all the other guys in my group for filling tires. That is confirmed when studying all VIAIR offerings.
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Purdyd
Nomad
Posts: 131
Registered: 10-21-2018
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https://www.dewalt.com/product/dcc020ib/20v-max-cordedcordle...
Or something similar.
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